In 2000, the population of a country was approximately 5.99 million and by 2069 it is projected to grow to 12 million. Use the
exponential growth model A = A_0 e ^kt, in which t is the number of years after 2000 and A_0 is in millions, to find an exponential growth function that models the data. b. By which year will the population be 10 million?